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2000 engine harness in 1998 car?

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Old Dec 4, 2008 | 04:19 PM
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Default 2000 engine harness in 1998 car?

Hello all you LS1 guys. I just got my first LS1 car. I bought it as a roller with no motor or trans. It is a 1998 Trans Am, A4.

I just purchased a complete 2000 LS1/T56 dropout to use in this car. Being the car was an A4 and I am swapping it over to M6, I would like to just use the 2000 engine harness and PCM.

I am new to the LS1 scene but not new to the fourth gen f body at all. What do I need to do to use the 2000 harness and PCM in my 1998 car? Will it be plug and play or will some changed be made? I could always just find a 1998 M6 harness but I already have this stuff.


Input, advice please? Thanks!
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Old Dec 4, 2008 | 09:04 PM
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The 1998 is a unique Year, unless you get a Pin Out Diagram for the Harness and re-wire yours, I would try to find a 1998 Harness.
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Old Dec 4, 2008 | 10:09 PM
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No more LT1 blues merv
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Old Dec 4, 2008 | 11:36 PM
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I see that.. you will like the LS1..
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Old Dec 5, 2008 | 12:20 AM
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I know. I will keep the LT1 though. I want to keep it for life
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Old Dec 7, 2008 | 06:07 PM
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The 98 PCM was specific to that year as well.
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